decryptr/api

Dockerfile and plumber to start the api.

Usage

To serve the API on http://localhost:80 with no load balancing, run the command below:

docker build -t api .
docker run -p 80:80 api

Adding a new key

One can add new keys using the key_generator function found in key-generator.R. Keys are a sequence of 64 random generated elements and their hash is saved in the keys.yaml file. The generated key can only be seen once.

To generate a new key you need to run:

source("key-generator.R")
key_generator("name-of-the-endpoint")

The function will make necessary modifications to keys.yaml. They generated key will be printed to the console. Note The key is printed only once.

Updating the endpoint

On shell, type:

docker build -t dfalbel/api .
docker push dfalbel/api
gcloud compute instances create-with-container decryptr \
 --project=decryptr-196601 \
 --container-image dfalbel/api \
 --machine-type g1-small \
 --tags http-server \
 --address 104.197.127.86 \
 --metadata startup-script='#! /bin/bash
sudo iptables -w -A INPUT -p tcp --dport 80 -j ACCEPT
EOF
'

You must have gcloud CLI installed.

Using from R

You can use the API from with the following chunk of code:

library(magrittr)

# parameters
arq <- "https://decryptr.netlify.com/img/sample-captcha.png"
key <- "your-api-key"

# converting the image to base64

img <- arq %>%
  readr::read_file_raw() %>%
  base64enc::base64encode()

# post request
res <- httr::POST(
  "https://decryptr.now.sh/rfb",
  body = list(
    img = img,
    key = key
  ),
  encode = "json"
)

httr::content(res)

Please visit decryptr.netlify.com fore more info and to obtain your own key.